Hi Phil, Check the casting number on the block and on the heads. I have a booklet that lists casting number years and displacements if you need help. Doug Warrener Fair Oaks, CA 300H ----- Original Message ----- From: "Phillip M greenfeld" <pgreen413@xxxxxxxxxxxxxx> To: chrysler300@xxxxxxxxxxxxxxx Sent: Sunday, May 30, 2010 8:29:09 PM GMT -08:00 US/Canada Pacific Subject: [Chrysler300] Thanks to everyone who has responded with any idea for my problems. Any and all input is appreciated. I do have 1 more of I am sure several questions How can I tell if it is an actuall 413, I have another 300K, that has C-300-K as well as the production date. stamped on the motor. My New 300K does not have this on the motor. Thank You, Phil [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/